KR101384751B1 - High pressure melamine laminates panel manufacturing method and manufacturing device - Google Patents

Abstract

The present invention relates to a processing method for a laminate panel comprising: a step of re-processing a disc panel of a HPL panel in a panel form to be processed; a step of forming a hole for assembly and a tetragonal hole in an edge and one side of a re-processed HPL panel; a step of installing the HPL panel in which the hole for assembly is formed in a press mold of 50-100°C; a step of installing the HPL panel in the press mold of 50-100°C and performing processing and heating at a temperature of 135-150°C for 10-30 minutes after closing the mold in order to correspond to the HPL panel; a step of performing cooling until the temperature of the mold is less than 40°C after performing heating and processing in the press mold; and a step of detecting and packing the HPL panel processed after cooling the mold. The HPL panel of the present invention has uniform thickness without distortion in processing, is able to be applied to various colors and patterns, exhibits excellent chemical and physical properties and enables a HPL panel product, to have high quality, used in the interior/exterior material of a building structure, a furniture, a railway, a subway, a bus and a vessel, surface materials and floor materials.

Description

High Pressure Melamine Laminate Panel Processing Method and Processing Equipment {HIGH PRESSURE MELAMINE LAMINATES PANEL MANUFACTURING METHOD AND MANUFACTURING DEVICE}

The present invention relates to a laminate panel processing method, more specifically, a variety of colors and patterns can be applied and excellent wear resistance and chemical and physical properties, building structures, furniture, railway and subway, and interior / exterior materials such as buses, ships, etc. In addition, the present invention relates to a method for processing melamine laminate panels to which high pressure is applied so that thickness can be uniformly processed without using distortion when processing melamine laminate panels used as other surface materials and flooring materials.

In general, steel sheets are widely used to form panels. The required structural properties, such as stiffness, depend on the particular application. Therefore, when a high level of rigidity is required, the thickness of the steel sheet is usually increased. However, this increase in the thickness of the steel sheet not only becomes heavy, but also more expensive.

Many attempts have been made to improve the structural properties of panels without substantially increasing the weight or material cost. For example, steel sheet composites with solid polymer cores have been used in applications where noise protection and vibration damping are required.

However, the specific stiffness of the polymer core product does not reach the desired level. Recently, the panel is processed using a different core material for the metal shell structural panel to reduce the weight and have the same effect as the steel sheet. .

Laminate panels to replace such a panel has been provided as a flat plate, but in the past, there is a problem that a lot of work time and effort is added to the manual processing by hand to process the laminated flat panel.

Looking at the prior art in this field,

"Laminate panel and its processing method" of Korea Patent Publication No. 10-2005-0042219 (prior art 1) is disposed between the first metal layer, the second metal layer, and the first metal layer and the second metal layer and these A laminate panel comprising a core layer bonded to each other,

The core layer includes a fiber layer, a first adhesive layer interposed between the first metal layer and the fiber layer, and a second adhesive layer interposed between the second metal layer and the fiber layer, wherein the first adhesive layer and the second adhesive agent Laminate panels (see Fig. 1) each made of a thermoplastic resin have been disclosed.

The prior art 1 forms a first adhesive layer interposed between the first metal layer and the fibrous layer, and forms a second adhesive layer interposed between the second metal layer and the fibrous layer to form a laminate, thereby reducing productivity and processing process. Due to this complex relationship, there is a problem that the competitiveness of the product falls.

In addition, if you look at the interior panel processing method used in subways, trains, trains, etc., by using a phenol resin to vacuum the interior panel and the gel coating of the phenol resin on the surface of the interior panel so that the surface is clean and the color can be expressed freely. At the same time, there is provided a panel that provides a phenol laminate interior panel having flame retardancy that does not burn in a fire.

Looking at this prior art,

 "Phenol Laminate Interior Panel for Subway and its Processing Method" of Korean Patent Application Publication No. 10-2006-0017029 (prior art 2) selected by the present applicant is a panel for manufacturing synthetic resin interior panels of trains and trains. Forming a mold in the shape and shape of the mold, and applying a release wax to form a mold on the surface of the mold in order to facilitate demoulding of a product to be molded later; Applying a phenolic laminate gel coat of a selected color to a surface of the mold for which the release wax is applied and curing the same in a drying chamber at 80 ° C. to 100 ° C .; Laminating a mat formed of a cloth and a cloth to the phenolic laminate gel coat coating layer; Laminating a release film on the mat surface; Stacking a breather on the laminated release film to be used as an air passage in a vacuum; Stacking vacuum films on the release film on which the breather is laminated and then sealing the sealant with sealant; Vacuuming the sealed laminated vacuum film at a pressure of 60 cmHg for 20 to 40 minutes using a valve; Performing vacuum so as to completely cure in a drying chamber at a temperature of 80 ° C. to 120 ° C. for 40 to 100 minutes after the vacuum; Disclosed is a process for processing a phenol laminate interior panel for subways, characterized in that the cured interior panel is formed after demolding and cutting and inspecting the cured interior panel.

The prior art 2 is also carried out in a complicated processing process, there is a problem that the strength is lower than the steel sheet.

Republic of Korea Patent Publication No. 10-2005-0042219 Republic of Korea Patent Publication No. 10-2006-0017029

The present invention has been made to solve the above problems, and it has no distortion and thickness when processing laminate flat panels used as various surface and floor panels as well as interior / exterior panels having excellent color, pattern, wear resistance, and chemical and physical properties. The present invention relates to a method and apparatus for processing melamine laminate panel to which high pressure is applied for the purpose of solving the inconvenience of manual work by uniformly processing at high pressure.

Processing an HPL panel for cutting the flat panel of the high pressure melamine laminate panel (HPL) to a desired standard;

Forming a square hole and an assembly hole on one side and an edge edge of the cut HPL panel;

Charging the HPL panel having the assembly hole formed therein into a press mold having a temperature of 50 ° C. to 100 ° C .;

Charging the HPL panel to a press mold at 50 ° C. to 100 ° C., closing the mold so as to correspond to the HPL panel, and then pressing and heating the HPL panel at a temperature of 135 ° C. to 150 ° C. for 10 minutes to 30 minutes;

Cooling the mold until heating the mold temperature to 40 ° C or lower after heating;

After the press mold is cooled, processing is performed by inspecting and packaging the molded HPL panel by demolding.

The press mold for processing the HPL panel is made of an upper mold and a lower mold, the upper mold and the lower mold is a pipe is installed therein, one side of the pipeline is composed of the cooling water inlet and the other side is composed of the cooling water discharge.

The HPL panel of the present invention processed as described above has an advantage of improving the quality of the product by using the melamine laminate processed at a high pressure without surface distortion after processing, and having excellent abrasion resistance and chemical physical properties, in particular, HPL flat panel It can be easily and easily processed by the high pressure press, which was processed by hand, and has the ease of processing, economic efficiency, and convenience of work.

The HPL panel of the present invention processed as described above has a constant thickness without distortion during processing, various colors and patterns are applicable, and excellent wear resistance and chemical physical properties, such as building structures, furniture, railways and subways, buses, ships, etc. Simple and easy processing to be used not only for interior / exterior materials, but also for other surface materials and flooring materials, which has the effect of shortening the processing time, reducing the processing production cost, and improving the quality of the product.

1 is a partial cross-sectional view of a laminate panel composed of a conventional steel sheet and a fiber layer,
2 is a process drawing of a conventional phenol laminate interior panel processing method for a subway,
Figure 3 is a process chart for processing the pressurized melamine laminate panel of the present invention into a press die,
Figure 4 shows a press mold in which the press mold is formed by air cooling as another embodiment of the present invention.

When explaining the embodiment of the present invention as described above in detail.

First, the press mold structure for processing the flat panel HPL panel of the present invention will be described.

The press mold 10 for processing the HPL panel 1 consists of an upper mold 20 and a lower mold 30.

The upper mold 20 is provided with an upper mold portion 21 on the bottom, the step portion 22 of the "b" type is formed at the edge of the upper mold portion 21, than the outer peripheral surface of the step portion 22 The cooling water inlet 25 is protruded on one side of the peripheral portion 23, which protrudes outward, and the cooling water outlet 26 is protruded on the other side of the cooling water inlet 25.

An upper surface of the lower mold 30 corresponding to the upper mold 20 has a lower mold portion 31 formed on a surface corresponding to the upper mold portion 21 of the upper mold 20, and a lower mold portion 31. A stepped base 32 is formed at an edge, and the stepped base 32 has a lower end 33 protruding upward from the top of the stepped base 32, and a lower end 33 is formed at one side thereof. The coolant inlet 34 is formed and the coolant outlet 35 is formed on the other side so that the bottom surface of the peripheral portion 23 of the upper mold 20 is seated on the lower end 33.

In addition, the press die 10 of the present invention may be cooled by water cooling as described above, or may be cooled by air cooling.

The high pressure melamine laminate panel (HIGH PRESSURE MELAMINE LAMINATES PANEL: HPL) processing method using the press mold of the present invention formed as described above will be described as follows.

First step: cutting the original HPL panel

HPL panel 1 is cut to form a panel of a size to process the original plate of the high-pressure melamine laminate panel (HPL).

Processing in this process cuts flat melamine laminate panels into the size and shape of the panels to be processed.

Second step: forming an assembly hole in the HPL panel

This process may form or omit the assembly hole according to the structure of a product.

Square holes and assembly holes are formed on one side and edge edges of the HPL panel 1 cut in the first process.

Forming a square hole in the one side is to form a window at a point corresponding to the position of the display window, the control panel, etc. according to the product.

In addition, assembling holes can be assembled after fixing the assembly holes to the pins of the jig when used by hanging on the jig during assembly according to the structure of the product.

Step 3: install HPL panel cut to press mold

The lower mold part of the lower mold 30 in a state where the HPL panel in which the square hole or the assembly hole is formed is heated at a temperature of 50 ° C. to 100 ° C. by opening the upper and lower molds 20 and 30 of the press die 10. (31) It is placed on top and the upper and lower molds are slowly closed so that the upper mold portion 21 of the upper mold 20 corresponds.

Heating the upper and lower molds 20 and 30 at 50 ° C. to 100 ° C. is caused by breakage or deformation when the melamine laminate panel formed at a high pressure is pressed with a press die. After the panel 1 is installed in the lower mold 30, the upper mold 20 is closed. At this time, the temperature 50 ℃ ~ 100 ℃ may be set to 50 ℃ or 100 ℃ according to the size of the product.

4th process: heating process

The HPL panel was charged to the lower mold 30 of the press mold 10 at a temperature of 50 ° C. to 100 ° C., and then the upper mold 20 was closed to correspond to the HPL panel 1 and pressurized to 10 ° C. at a temperature of 135 ° C. to 150 ° C. Heat for 30 minutes.

When the HPL panel 1 located between the upper and lower molds is pressurized and heated to a temperature of 135 ° C to 150 ° C as described above, the HPL panel 1 is processed into the shape of the upper and lower mold parts 21 and 31.

Process 5: Cooling and Demolding

After the heat treatment in the press die is cooled until the mold temperature is lowered below 40 ℃. At this time, the cooling can be performed by water cooling or air cooling.

In the case of water cooling, as shown in FIG. 3, through the coolant inlet 25 installed on one side of the upper mold 20, the peripheral part 23, and the coolant inlet 25 installed on one side of the lower end 33 of the lower mold 30. When the cooling water flows in, the cooling water cools the upper mold 20 and the lower mold 30 and discharges the discharge water through the cooling water discharge parts 26 and 35 installed on the other side.

In addition, the present invention is installed in the upper mold of the press mold 10 as shown in Figure 4 to face the cooling water inlet to the upper surface and the lower mold is installed in the form installed in Figure 3 and then cooled by injecting cold air instead of cooling water Furnace air cooling system can be installed.

After cooling the press die as described above, by opening the upper mold and demolding the molded HPL panel by the inspection package is made HPL panel processing method.

In the present invention processed as described above, the thickness of the HPL panel 1 is uniform without processing, various colors and patterns are applicable, and the wear resistance and chemical and physical properties are deformed at the external temperature and the external environmental conditions during processing. Machining is performed in a range where this does not occur.

Therefore, the present invention reduces the processing time by using a high-pressure press without processing the HPL panels used as building structures, furniture, railways and subways, as well as interior and exterior materials such as buses and ships, as well as other surface and floor materials. It is possible to achieve convenience, economical efficiency and high quality of products.

1: HPL panel 10: Press mold
20: upper mold 21: upper mold
22: step 23: peripheral part
25: coolant inlet 26: coolant outlet
30: lower mold 31: lower mold
32: stepped part 33: lower end
34: coolant inlet 35: coolant outlet

Claims (2)

Cutting the HPL panel to a standard form for processing the original panel of the high pressure melamine laminate panel (HIGH PRESSURE MELAMINE LAMINATES PANEL: HPL);
Forming a square hole and an assembly hole on one side and an edge edge of the cut HPL panel;
Installing the HPL panel on which the assembly holes are formed in a press mold having a temperature of 50 ° C. to 100 ° C .;
Installing the HPL panel in a press mold at 50 ° C. to 100 ° C., closing the mold so as to correspond to the HPL panel, and heating and heating the mold to a temperature of 135 ° C. to 150 ° C. for 10 minutes to 30 minutes;
Cooling the mold until the mold temperature is lowered to 40 ° C. or lower after heat processing;
Melamine laminate panel processing method of the high-pressure applied melamine characterized in that the step of cooling the press die and demolding the molded HPL panel by demolding. Press mold 10 for forming an HPL panel is composed of an upper mold 20 and a lower mold (30),
The upper mold 20 is provided with an upper mold portion 21 on the bottom, the stepped portion 22 of the "b" type is formed on the edge of the upper mold portion 21, than the outer peripheral surface of the step portion 22 Cooling water inlet 25 is protruded on one side of the peripheral portion 23 protruding outward, and the cooling water outlet 26 is protruded on the other side of the cooling water inlet 25,
An upper surface of the lower mold 20 corresponding to the upper mold 20 has a lower mold portion 31 formed on a surface corresponding to the upper mold portion 21 of the upper mold 20, and a lower mold portion 31. A stepped base 32 is formed at an edge, and the stepped base 32 has a lower end 33 protruding upward from an upper surface of the stepped base 32, and the lower end 33 Cooling water inlet 34 is formed on one side of the cooling water discharge portion 35 is formed on the other side is characterized in that the bottom surface of the peripheral portion 23 of the upper mold 20 is seated on the upper end of the lower end (33) High pressure melamine laminate panel processing equipment.

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